7/n: Extend schema implementation
7/n: Extend schema implementation

Differential Revision: D21557959

fbshipit-source-id: f201b51318810ac7b5e68fa2a5f8a1c54e9cd930

facebook/relay,voideanvalue/relay,wincent/relay,xuorig/relay,atxwebs/relay,facebook/relay,xuorig/relay,facebook/relay,voideanvalue/relay,josephsavona/relay,voideanvalue/relay,wincent/relay,atxwebs/relay,kassens/relay,kassens/relay,kassens/relay,yungsters/relay,atxwebs/relay,voideanvalue/relay,facebook/relay,wincent/relay,facebook/relay,yungsters/relay,xuorig/relay,xuorig/relay,kassens/relay,facebook/relay,josephsavona/relay,kassens/relay,xuorig/relay,voideanvalue/relay,wincent/relay,xuorig/relay,kassens/relay,voideanvalue/relay,yungsters/relay,wincent/relay,josephsavona/relay,wincent/relay,atxwebs/relay